Component Inspection

1. Turn ignition switch OFF.
2. Remove fuel filler cap.
3. Wipe clean valve housing.
   Fig 1: Identifying Fuel Filler Cap Components

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.
5. Check valve opening pressure and vacuum.

   Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm ²  , 2.22 - 2.90 psi) 

   Vacuum: -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm ²  , -0.87 to -0.48 psi) 

Fig 2: Checking Valve Opening Pressure And Vacuum

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the inspection result normal? 

YES: INSPECTION END

NO: GO TO 2.

Replace fuel filler cap.

INSPECTION END